Philadelphia's startup scene has been evolving since the 70s. The 70s saw the founding of TDH by the Buck family as the first Philadelphia venture fund; The 80s saw the joint City of Philadelphia/Wharton task force to form the first national venture capital firm based in Philadelphia as well as the founding of the "Delaware Valley Venture Group" (now PACT) and Ben Franklin Partners of SE Pennsylvania; the 90s saw Safeguard's dominance and the formation of institutional angel groups in the 2000s. How has the Philadelphia startup scene evolved?

Image: Karen Griffith Gryga, managing partner at DreamIt Ventures